started adding function to compute p-values

test_pipes/test_mim_stats.m

@@ -0,0 +1,42 @@
+% Test shuffling algorithm that calculates true MIM and generates MIM null distribution.
+%% Run pipeline
+clear
+eeglab
+
+eeglabp = fileparts(which('eeglab.m'));
+EEG = pop_loadset('filename','eeglab_data_epochs_ica.set','filepath',fullfile(eeglabp, 'sample_data/'));
+EEG = pop_resample( EEG, 100);
+EEG = pop_epoch( EEG, { }, [-0.5 1.5], 'newname', 'EEG Data epochs epochs', 'epochinfo', 'yes');
+EEG = pop_select( EEG, 'trial',1:30);
+[ALLEEG, EEG, CURRENTSET] = eeg_store(ALLEEG, EEG);
+eeglab redraw;
+
+EEG = pop_dipfit_settings( EEG, 'hdmfile',fullfile(eeglabp, 'plugins','dipfit','standard_BEM','standard_vol.mat'), ...
+    'coordformat','MNI','mrifile',fullfile(eeglabp, 'plugins','dipfit','standard_BEM','standard_mri.mat'),...
+    'chanfile',fullfile(eeglabp, 'plugins','dipfit','standard_BEM','elec', 'standard_1005.elc'),...
+    'coord_transform',[0.83215 -15.6287 2.4114 0.081214 0.00093739 -1.5732 1.1742 1.0601 1.1485] ,'chansel',[1:32] );
+
+EEG = pop_leadfield(EEG, 'sourcemodel',fullfile(eeglabp,'functions','supportfiles','head_modelColin27_5003_Standard-10-5-Cap339.mat'), ...
+    'sourcemodel2mni',[0 -24 -45 0 0 -1.5708 1000 1000 1000] ,'downsample',1);
+
+EEG = pop_roi_activity(EEG, 'leadfield',EEG.dipfit.sourcemodel,'model','LCMV','modelparams',{0.05},'atlas','LORETA-Talairach-BAs','nPCA',3);
+
+%% Create null distribution
+EEG = pop_roi_connect(EEG, 'methods', {'COH', 'MIM'}, 'conn_stats', 'on', 'nshuf', 3);
+
+% ROI selection
+MIM = squeeze(mean(EEG.roi.MIM, 1)); % broadband for now
+
+% generate p-values by comparing true MIM to null distribution
+netMIM = squeeze(mean(MIM, 2));
+MIM_pn = sum(netMIM(:,1) < netMIM(:,2:end),2)./(size(MIM,3)-1);
+
+% plot 
+load cm17;
+load cortex; 
+MIM_pn(MIM_pn==0) = 1 / (size(netMIM, 2)-1);  % 1 / nshuf
+data = -log10(MIM_pn);
+% allplots_cortex_BS(cortex_highres, data, [min(data) max(data)], cm17a ,'-log(p)', 0.3);
+allplots_cortex_BS(cortex_highres, data, [0 5], cm17a ,'-log(p)', 0.3);
+
+